2. 外语
  3. It is 【C1】______ spring, and all of us are thankful to see trees blooming and birds 【C2】______ to nest again. Just about all of

It is 【C1】______ spring, and all of us are thankful to see trees blooming and birds 【C2】______ to nest again. Just about all of

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问题      It is 【C1】______ spring, and all of us are thankful to see trees blooming and birds 【C2】______ to nest again. Just about all of us have plenty of limbs, trees, and yard to do throughout the maintenance next few weeks.
     Caution! Grey, red, fox and flying squirrels and a variety of songbirds and rabbits are nesting. In some areas baby squirrels and rabbits are already showing up in rehabilitation.
     Squirrel 【C3】______ are very obvious; they are large and secured in the fork of tree branches. Just because you listen and don’t hear any cries coming from the nest area, that means nothing. Flying squirrels make their nests in cavities.
     Wildlife withdraws and tries to make as little noise as possible to keep from attracting a 【C4】______ . attention. Man is fire biggest predator any wild creature will ever face.
     As you drag brush from gardens and yards, be alert and observant for 【C5】______ bunnies. Brush piles are favorite spots for rabbits to breed under.
     During the past couple of weeks, homeowners cleaning up after numerous snow, rain and wind storms have called for help with baby squirrels nesting in trees that has to be 【C6】______ .
     What can you do? If a tree is a danger to human and has to be cut, arrange for an experienced tree climber to 【C7】______ the baby squirrels before it is cut. Most professional tree trimmers will happily assist, if asked. After the tree is on the ground, if possible, create a leaf nest lined with soft cloth on the ground and place the babies in it, and leave the immediate area. Stay close enough to observe and rescue the babies 【C8】______ a neighborhood cat come by to investigate.
     The mother squirrel will probably return to 【C9】______ her babies and move them to a new nest. Squirrels have primary and secondary nests. The babies will probably be moved to a 【C10】______  one. If the mother squirrel has to build a new nest, she can do 【C11】______  in a matter of hours.
     When she comes to retrieve the babies, she will seemingly bite them in the stomach area. They put their tiny, sharp claws around her head and 【C12】______  while she carries them to the new nest. The building of a new nest and moving of her clutch may 【C13】______  no more than a few hours.
     Should the mother squirrel hot return, and you need help in saving the baby squirrels.
     Native wildlife is protected by law. A licensed rehabiliator is the only person that can 【C14】______  orphan, native wildlife to raise and release. During March and April, baby squirrels, rabbits and owls may need your help to survive. The rule of thumb is 【C15】______  until you are absolutely sure a baby is an orphan!
     It takes all of us human and wild working together to survive.
【C10】
选项 A、primary
B、tertiary
C、secured
D、secondary
答案D
解析 前文提到松鼠有第一个和第二个窝。所以，这里母松鼠是来找回自己的小松鼠，然后再到第二个窝(可以是新筑的窝)去。
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